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STMicroelectronics STM32G473RET6TR
- Part No.:
- STM32G473RET6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32G473RET6TR.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,659
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Product details
Overview
STM32G473RET6TR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, operating at up to 170 MHz (213 DMIPS), featuring 512 KB Flash with ECC, 128 KB SRAM (96 KB + 32 KB CCM), and integrated analog peripherals including five 12-bit ADCs (0.25 µs conversion), seven 12-bit DACs, six operational amplifiers, and three FDCAN controllers. It targets motor control, digital power conversion, and industrial sensing systems requiring real-time math acceleration.
For engineers reviewing the STM32G473RET6TR datasheet, STM32G473RET6TR pinout, STM32G473RET6TR application, or STM32G473RET6TR equivalent, key selection criteria include its CORDIC/FMAC hardware accelerators for trigonometric and filtering operations, 5 V-tolerant I/Os across 107 pins, dual-bank read-while-write Flash, and UCPD interface for USB Type-C™ power delivery implementation.
Technical Context
The STM32G473RET6TR implements an Arm Cortex-M4 core with FPU and Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from Flash at 170 MHz. Its memory subsystem includes 512 KB Flash (dual-bank, ECC-enabled, PCROP-secured) and 128 KB SRAM (96 KB general-purpose + 32 KB CCM with parity).
Analog integration comprises five independent 12-bit ADCs (up to 42 channels, 0–3.6 V range), seven 12-bit DACs (3 buffered external @ 1 MSPS, 4 unbuffered internal @ 15 MSPS), six rail-to-rail op-amps configurable as PGAs, and dedicated CORDIC/FMAC accelerators for real-time signal processing in motor and power applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU and DSP instructions; enables deterministic floating-point math and signal processing in real-time control loops. |
| Max Clock Frequency | 170 MHz (213 DMIPS); supports high-speed closed-loop control in servo drives and digital power supplies. |
| Flash Memory | 512 KB with ECC, dual-bank read-while-write, PCROP; allows safe firmware updates and secure code partitioning. |
| SRAM | 128 KB total (96 KB + 32 KB CCM SRAM with parity); CCM provides low-latency instruction/data access for time-critical routines. |
| Analog Peripherals | 5 × 12-bit ADCs (0.25 µs), 7 × 12-bit DACs, 6 × op-amps, 7 × comparators; supports simultaneous current/voltage sensing and PWM generation in motor drives. |
| Communication Interfaces | 3 × FDCAN (flexible data-rate), 5 × USART, 4 × I²C, 4 × SPI, USB FS, UCPD; enables robust fieldbus connectivity and USB-C PD negotiation. |
| Math Accelerators | CORDIC (trigonometric functions) and FMAC (filtering); offloads CPU for fast angle calculation and digital filter execution without software overhead. |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with 64-pin quad flat lead frame; RoHS-compliant, industrial temperature grade (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA | Core & analog supply | 1.71–3.6 V operation; separate analog domain ensures stable reference for ADC/DAC/OPAMP precision. |
| VSS, VSSA | Digital & analog ground | Independent ground planes reduce noise coupling between digital switching and sensitive analog circuits. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Up to 107 GPIOs; most support 5 V tolerance and external interrupt capability for flexible peripheral interfacing. |
| NRST | Reset input | Active-low reset with internal pull-up; compatible with external reset supervisors and push-button recovery. |
| BOOT0 | Boot mode select | Configures boot source (system memory, Flash, or SRAM); essential for bootloader deployment and debug recovery. |
| SWDIO/SWCLK | Debug interface | 2-pin Serial Wire Debug (SWD) for programming and real-time trace; minimal pin count vs JTAG. |
Key Features
| Feature | Design Value |
|---|---|
| CORDIC accelerator | Hardware trigonometric computation (sin/cos/tan/atan) in ≤10 cycles; eliminates software library latency in field-oriented control (FOC). |
| FMAC unit | 16×16-bit MAC with 32-bit accumulator; executes FIR/IIR filters in single-cycle throughput for real-time current loop compensation. |
| UCPD interface | Integrated USB Type-C™ Power Delivery controller; handles PD communication, VBUS monitoring, and role swapping without external IC. |
| Advanced timers (TIM1/TIM8/TIM20) | 32-bit resolution, 8-channel PWM, dead-time insertion, emergency stop; supports 3-phase motor gate driving with fault protection. |
| VREFBUF | Programmable 2.048 V / 2.5 V / 2.9 V output; provides stable reference for ADC, DAC, and comparator circuits without external components. |
Applications
| Industrial Motor Control | Digital Power Supply |
|---|---|
Use Scenario: Field-oriented control (FOC) of 3-phase BLDC/PMSM motors in HVAC compressors and industrial pumps. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithm, generating 6-channel complementary PWM with dead-time, sampling current via dual ADCs, and managing thermal/fault protection. Use Value: CORDIC and FMAC accelerate rotor position estimation and current loop filtering; advanced timers ensure precise gate drive timing and emergency shutdown. |
Use Scenario: Digital AC-DC and DC-DC power supplies with adaptive voltage regulation and PMBus communication. IC Role / Device Role / Timing Role: Primary digital controller performing voltage/current loop regulation, soft-start sequencing, and fault logging via integrated ADCs, DACs, and I²C. Use Value: Dual-bank Flash enables seamless firmware updates; 5 V-tolerant I/Os interface directly with optocoupler feedback and PMBus transceivers. |
| USB-C Power Delivery System | Industrial Sensor Hub |
Use Scenario: USB-C port controller for laptops, docks, and monitors supporting 100 W PD negotiation and role swap. IC Role / Device Role / Timing Role: Dedicated UCPD controller managing PD protocol stack, VBUS monitoring, CC line detection, and power path control via GPIO-driven MOSFETs. Use Value: On-chip UCPD eliminates need for external PD PHY; integrated op-amps condition CC line signals; LPUART supports debug logging during negotiation. |
Use Scenario: Multi-sensor data acquisition node for predictive maintenance in factory automation (vibration, temperature, current). IC Role / Device Role / Timing Role: Central sensor aggregator with simultaneous sampling across 5 ADCs, real-time FFT via CORDIC/FMAC, and wireless transmission via UART/SPI. Use Value: 128 KB SRAM buffers multi-channel time-series data; RTC with alarm enables scheduled wake-up for low-power sensing bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G431KBT6 | Same G4 series, but 128 KB Flash, 32 KB SRAM, no CORDIC/FMAC, fewer ADC/DAC channels. | Suitable for cost-sensitive motor control where full math acceleration is not required. | Select when budget constraints outweigh need for hardware trigonometric/filter acceleration. |
| STM32H743VIT6 | Cortex-M7 core, 480 MHz, 2 MB Flash, 1 MB SRAM, dual-core option, no CORDIC but higher raw performance. | Better for complex HMI + control co-processing; lacks integrated UCPD and analog richness of G473. | Choose for applications needing >200 MHz compute headroom and external analog ICs acceptable. |
Compared with STM32G431KBT6, the STM32G473RET6TR adds hardware math acceleration and richer analog integration for demanding real-time control; versus STM32H743VIT6, it trades peak CPU speed for on-die analog peripherals and UCPD-making it more compact and cost-effective for USB-C PD and motor control edge nodes.
Availability
STM32G473RET6TR is available at Aetrix Electronics and suitable for industrial motor control, digital power conversion, and USB-C power delivery systems requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade sourcing.
Supply support for STM32G473RET6TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.
The STM32G4 series is engineered for real-time digital power and motor control applications, integrating math accelerators, high-resolution analog peripherals, and USB-C PD functionality into a single chip to reduce system BOM and PCB complexity.
FAQ
What is the maximum operating temperature range for STM32G473RET6TR?
The STM32G473RET6TR is rated for industrial temperature operation from –40°C to +85°C. This range is validated per ST's characterization testing and applies to all LQFP64-packaged variants. Thermal derating is not required within this envelope under specified VDD and ambient conditions.
Does STM32G473RET6TR support hardware encryption or secure boot?
Yes-it includes securable memory areas, proprietary code readout protection (PCROP), and a 96-bit unique ID. While it lacks a dedicated cryptographic accelerator (e.g., AES engine), PCROP enables secure firmware partitioning, and the unique ID supports device authentication in custom secure boot flows.
Can the CORDIC unit perform inverse trigonometric functions like arcsin or arccos?
Yes-the CORDIC unit natively computes sin, cos, tan, atan, asin, and acos in rotation and vectoring modes. These functions execute in fixed cycle counts (e.g., 10–20 cycles depending on precision), and are accessible via dedicated registers mapped to the APB bus per the RM0440 reference manual.
Is the UCPD interface compliant with USB PD 3.0 specification?
Yes-the integrated UCPD controller supports USB Power Delivery 3.0, including structured VDMs, SOP'/SOP" messages, and Fast Role Swap (FRS). It interfaces directly with CC1/CC2 lines and VBUS, and requires only external level-shifters and gate drivers for full compliance per USB-IF test plans.
STM32G473RET6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-LQFP
- Series:
- STM32G4
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit
- Speed:
- 170MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, TRNG, WDT
- Number of I/O:
- 52
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 26x12b SAR; D/A 7x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G473RET6TR FAQ
1.How can I place an order for STM32G473RET6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G473RET6TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM32G473RET6TR reliable?
The price and inventory of STM32G473RET6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G473RET6TR is usually 5 days.
3.What payment methods are accepted for STM32G473RET6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G473RET6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G473RET6TR?
STM32G473RET6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G473RET6TR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM32G473RET6TR?
For technical support, including STM32G473RET6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G473RET6TR requirements.
6.How does Aetrix verify that STM32G473RET6TR is sourced from the original manufacturer or authorized distributors?
All STM32G473RET6TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32G473RET6TR meets industry standards.
7.What is the process for return or replacement of STM32G473RET6TR?
All STM32G473RET6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32G473RET6TR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM32G473RET6TR part is unused and in its original packaging.
Return procedure for STM32G473RET6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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